Home / 100,232.24-138,320.66-54,909.23

Finding the Fourth Proportional to 100,232.24, 138,320.66 and 54,909.23

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Solution

The fourth proportional to 100,232.24, 138,320.66 and 54,909.23 is: 75,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,232.24 : 138,320.66 = 54,909.23 : x
  2. Step 2: Convert to fraction form
    100,232.24/138,320.66 = 54,909.23/x
  3. Step 3: Cross multiply
    100,232.24x = 138,320.66 × 54,909.23
  4. Step 4: Simplify right side
    100,232.24x = 7,595,080,933.69
  5. Step 5: Solve for x
    x = 7,595,080,933.69/100,232.24
  6. Step 6: Final answer
    x = 75,774.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.